saltzkoen



2 .Sheets-Sheet 1.

E. SALTZKORN a L. NICO-LAI. MACHINE FOR PASTENING METAL STRIPS T0GA-RDBOARD, &G.

No. 541,689. .Patented June 25, 1895..

{No Model.)

(No Model.) 2 shefrs-shee 2.

E. SALTZKORN & L. NICOLAI. MACHINE Fon FASTBNING METAL STRIPS ToGARDBOARD, aw.,

No. 541,689. Patented June 25, 1895.

ma Nomus natifs oo. PNoro-uruo.. wAsHxuomN, u. a

NrTn STATES PATENT VVGarros.,

EMIL SALTZKORN AND LUDVIG NICOLAI, OF DRESDEN, GERMANY.

MACHINE FOR FASTENING METAL STRIPS To CARDB'OARD,'&C.

SPECIFICATION forming part of Letters Patent No. 541,689, dated J une25, 1895.

Application filed March 15,1893. Serial No. 466,166. (No model.)Patented in (Iiermany February 25, 1893, No. 71,973; in France March 9,1898, No. 228,503: in Belgium March 9, 1893, No. 103,769; in EnglandMerch 25, 1893, No. 4,199. and in Austria-Hungary A.l'uly 25, 1893,Ilm-12.870 and No. 27,506.

' Strips to Sheets of Cardboard, Wood, Leather,

I struction.

dec., (for which we have obtained Letters Patent as follows: in Germany,No. 71,973, dated February 25, 1893; in France, No. 228,503, dated March9, 1893; in Belgium, No. 103,769, dated March 9, 1893; in Great Britain,No. 4,199, dated March 25, 1893, and in Austria- Hungary, No. 12,670 andNo. 27,506, dated July 25, 1893,) of which the following is aspecification.

The object of our invention is to provide a machine for securing a metalstrip to the edge of a sheet of 'cardboard or other material, of

such character that when the edges of two sheets so supplied are broughttogether a hinged joint is formed, which, by the removal of theconnecting pivot pin, may be readily detached when necessary.

The invention is particularly adapted for the manufacture of what aregenerally known as paper boxes as more fully set forth hereinat'ter, butmay be advantageously employed for all purposes where it is necessary toform a hinged or detachable connection between two sheets of anymaterial.

In the accompanying drawings, Figure 1 is an elevation of a machineconstructed in accordance with our invention, a portion of the machinebeing shown in sectionl to more clearly illustrate certain of thedetails of construction. Fig. 2 is a plan view of the same with the feedtable removed. Fig. 3 is asectional elevation on the line a', Fig. 1..Lis a sectional view on the liney 'y of Fig. 5, illustrating on alarger scale a detail of con- Fig. 5 is a plan view ofthe same. Figs. 6,6, and 7 are views showing sheets of cardboard or other materialsupplied with metal edge strips. Figs. 8 and 8** show suchv strips indetail; and Figs. 9, 10, and 11 are views corresponding respectively toFigs. 1, 2, and 3, illustrating more clearly the arrangement of thepedal and its connected levers.

Fig.-

The strips, d, to be secured to the edges of 5o the sheets are of aconstruction more clearly shown in Figs. 8 and 8a and are formed bysuitable stamping machines from hat sheets or strips by cutting a seriesof openings in the center of the sheet or strip and then bending itlongitudinally until it assumes an approximately V-shape in crosssection. The opposite edges may be plain, or cut in the manner shown inFig. 8, in a continuous series of semi-circular projections forming anescalloped edge, the projections of one edge being opposite the spacebetween adjoining projections of the opposite edge, or in any othersimilar manner.

The operati-ng parts of the machine are mounted upon a suitablesupporting frame,

'2, at the central portion of which is secured .with right and left handscrew threads.

Upon thisrthreaded shaft are two vertically disposed plates 4 and 5situated one on each side of the block, 1, adapted to be moved towardand from the block as the shaft, 3, is rotated.'

They machine is constructed in the present instance with a view to themanufacture of boxes formed of a single blank cut into the shape shownby dotted lines in Fig. 1 and in Figs. 6, 6a, and 7, and as it isdesired to supply two of the edges of this blank with simi. lar metallicstrips at a single operation the block, 1, is made of the angular formshown having two sides at a right angle to each other and each side orface being provided with a series of recesses adapted to receive theprol jecting portions of the strips to be secured to the sheets, or aseparate recessed plate, 40,

lar pressing cheeks 9 and 10 of a contour corresponding to that of theblock, l, and secured to the plates by set screws, or otherwise soarranged as to permit their ready removal, the edges of the cheeksprojecting over the faces of the block, 1, in such manner that when theshaft, 3, is turned the screw threaded portions of such shaft will actupon plates 4 and 5 and the cheeks 9 and 10 will be forced toward eachother until the metal strip previously placed in position on the block,1, is firmly clamped to the sheet of cardboard, or other material.

It' necessary the edge or edges of one or both ofthe pressing cheeks maybe provided with projecting pins, 1], as shown in Figs. 4 and 5 which,When pressed against the metallic strip will puncture or indent thelatter and bend a small portion of the metal in against the cardboard orproduce a burred or roughened surface which will electually hold thestrip in its proper position.

Vhen the strip is made with an escalloped edge, as shown in Fig. 8,these indentations or punctures may be made in each side of the stripata point on the one side opposite to the spaced portion between twoadjoining semi-circular projections on the other side so that theindentations or punctures will serve to more effectually bind the metalstrip to the sheet.

The driving mechanism of the shaft, 3, is of simple constructioncomprising a shaft, 21, rotated by a belt Wheel, 24, from any suitablesource of power, and provided with friction disks, 22 and 23, adapted toengage with a large friction wheel, 6, on the shaft, 3. This shaft, 21,is mounted in suitable bearings 19 and 2O on theframe 2, and at or nearone end is provided with a grooved sleeve 25, secured to the shaft andwith which is adapted to engage an antifriction roller, 26, carried onone end ot a lever 27, fulcrumed at 4l tothe frame. At the lower portionof the fratrie is fulcrumed a pedal, 30, connected by a rod, 29, to alever, 37, fulcrumed at 42, to the frame and connected through themedium of a bell crank lever, 2S, and suitable connecting links with thelever, 27, so that the movement of the treadle, 30, may be transmittedto the lever, 27, and the shaft 2l, be moved longitudinally to bring oneor other of the friction disks 22 or 23 in contact with the periphery ofthe wheel, G, to effect the rotation of the latter and shaft, 3, onwhich it is mounted. In order to normally keep the disks 22 and 23 outof contact with the wheel, 6,thelever, 37, is extended for some distancebeyond the point of its connection with the rod, 29, and under thisprojecting portion extends one end of a lever, 3l, fulcrumed at 43 tothe frame and provided at its opposite end With a counterbalance weight,32, which will normally hold the disks 22 and 23 at a slight distancefrom the periphery of the wheel, 6.

The extent of movement of the plates 4 and 5 in opposite directions isgoverned as follows: In each plate is a set screw, 12, extending throughfrom the outside of the plate and adapted to engage with the oppositefaces of the block, 1, when the plates have been moved to an extentsufficient vto press the sides of the metal strip against the sheet ofcardboard, or other material, being acted upon. The limit of outwardmovement is governed by a brake shoe, 18, carried on one end of a lever,17, fulcrumed at 44 to the frame and connected through the medium ofsprings l5 and 16 to levers 14, pivoted to each other and having theiropposite ends fulcrumed respectively to the plates 4 and 5, forming alazytongs which, when expanded bythe outward movement of the plates4 and5 will act through the springs to force the brake shoe into contact withthe periphery of the wheel, 6, and gradually increasing the pressureofthe brake shoe upon the latter until the rotation of the Wheel ceases.

The machine is provided with a suitable Work table, 33, for theconvenience of the operator and secured to the Work table are verticallyarranged guides 32, which hold the cardboard in proper position duringthe operation of the machine.

In operation the plates 4 and 5 are moved out to their fullest extentand the strips, ct, of a contour such as shown in Fig. 8 are placed inposition on the block, 1, with the projecting portions of the toothlikeedge ot' the strip fitting into the recesses in the block or in theplate, 40. The sheet ot' cardboard, or other material, is then placedwithin the guides, 32, until the edges to be acted upon are inclosed bythe metal strips. The treadle, 30, is then depressed until the frictiondisk, 22, is in contact with the peripheryT of the wheeh, causing therotation of the shaft, 3, and the consequent movement of the plates, 4,and 5 toward eachother until the cheeks 9 and lO have pressed theopposite edges of the strip firmly in contact with the sheet ofcardboard, while those portions of the strip resting within the recessesof the plate 40, are not fiattened but assume a semi-circular form forthe reception of a pivot pin by which two of such strips may besubsequently united.

Various modifications of the construction herein shown willreadil'ysuggest themselves to persons skilled in the art, suchforinstance as the movement of one cheek only, or the movementof bothcheekspby means other than the described screw threads, as cams oreccentrics mounted upon the shaft, 3, and adapted to act upon the blocks4 and 5.

It Will be understood that the machine herein described as beingVarranged for operating the pressing cheeks horizontally may without anyessential alteration be so modied as to operate those parts vertically;also that the angular form of the block which is required for securingthe corners of the paper TOC) IIO

box is not essential, as the shape of the said block may vary accordingto the purpose for which it is employed.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is-

1. The combination of the angular' supporting block havin g on itsopposite faces recesses for the reception of the projecting portions ofthe strip being acted upon, pressing cheeks fitting over the angularsides of the block, indenting pins Acarried by each cheek, and mechanismfor moving the cheeks simultaneously toward and from each other,substantially as specified.

2. The combination of a recessed supporting block, the clamping cheeks,devices for operating same, and guideways for the sheet of material tobe acted upon, substantially as specified.

3. The combination of the recessed supporting block, a frame carryingthe same, atransverse shaft, supported by said frame, right and lefthand screw threads provided upon said shaft, plates 4 and 5 adapted tothe threaded portions of said shaft, and clamping cheeks secured to suchplates 4 and 5 and projecting over the edge of the supporting block,substantially as specified.

4. The combination of the supporting block, a frame carrying the saine,a transverse shaft, bearings therefor, right and left hand screw threadsprovided upon said shaft, plates 4 andv 5 adapted to the threadedportions of such shaft, cheek plates 9 and 10 secured to the plates 4and 5 respectively, and having clamping faces projecting` over the faceor faces of the supporting block, substantially as specitied.

5. The combination of the recessed supporting block, frame carrying thesame, a transverse shaft adapted to bearings in such frame, right andleft hand screw threads provided upon such shaft, plates 4 and 5 adaptedto the threaded portions of said shaft, clamping cheeks carried by suchplates 4 and 5, a friction wheel, 6, secured to such shaft, alongitudinally adjustable driving shaft, opposite friction disks securedthereto, and devices for adjusting such shaft to force one or the otherof the friction disks into contact with the periphery of the wheel, 6,substantially as specified.

6. The combination of the recessed supporting block, transverse shaft, aframe supporting theblock and the shaft, right and left hand screwthreads provided upon such shaft, plates 4 and 5 adapted to threadedportions of such shaft, clamping cheeks secured to such plates 4 and 5,setscrews, 12, carried by `the plates and adapted to limit the extent ofinward movement of the latter, a driven wheel, 6, secured to such shaft,a brake lever, 17, fulcrumed to the frame and provided with a brake-shoeadapted to engage with the periphery of such wheel, and levers, 14,fulcru med to the plates 4 and 5, and to each other, with connectingsprings extending'from such levers to the brake-lever, whereby theextent of outward movement of the plates'is controlled, substantially asspecified.

7. The combination of the supporting block, a recessed plate carriedthereby and adapted to receive the projecting portions of the metallicstrips, with pressing cheeks extending over the face or faces of suchsupporting block and adapted to clamp the edges of the strip,

substantially as specified.

8. The combination of the snpportingblock, the shaft, 3, a framecarrying such block and shaft, right and left hand screw-threadsprovided upon such shaft, plates 4 and 5 adapted to the threadedportions of such shaft, clamping cheeks c'arried by such plates, 4 and5, a friction wheel, 6, a driving shaft, 21, friction disks, 22, and 23,carried by the shaft, 2l, and adapted to vbe brought into engagementwith the periphery of the wheel, 6, a grooved sleeve, 25, secured to theshaft, 2l, a pivoted lever, 27, an antifriction roller thereon,engagingin such grooved sleeve, a treadle, 3Q, and a system of levers connectingsuch treadle to the lever 27, substantially vas specified.

In testimony whereof we have hereunto set our hands in the presence oftwo witnesses.

EMIL SALTZKORN. LUDWIG NICOLAI.k Witnesses: n

RUD. SCHMIDT, HERNANDO DE Soro.

